NSC 302 - Exam 1 2025/2026 Exam
Questions and Correct Answers | New
Update
Anterior (rostral) - 🧠 ANSWER ✔✔front of brain
Posterior (caudal) - 🧠 ANSWER ✔✔toward the tail
Dorsal - 🧠 ANSWER ✔✔Top/up/back
Ventral - 🧠 ANSWER ✔✔Bottom/down/belly side
Lateral - 🧠 ANSWER ✔✔away from the midline
Medial - 🧠 ANSWER ✔✔toward the midline
4 elements of the CNS - 🧠 ANSWER ✔✔Cerebrum, cerebellum, brain stem,
spinal cord
Dorsal root spinal nerve - 🧠 ANSWER ✔✔Carries afferent (sensory) info
into the spinal cord
Ventral root spinal nerve - 🧠 ANSWER ✔✔Carries efferent (motor)
information from the spinal cord
1
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
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,Dorsal root ganglia - 🧠 ANSWER ✔✔clusters of sensory neuron cell bodies
outside the spinal cord
Are the dorsal root ganglia in the somatic or visceral peripheral nervous
system? - 🧠 ANSWER ✔✔Somatic
Somatic PNS - 🧠 ANSWER ✔✔The part of the peripheral nervous system
that innervates the skin, joints, and skeletal muscles.
Visceral (autonomic) PNS - 🧠 ANSWER ✔✔Neurons which innervate the
internal organs, blood vessels, and glands; sympathetic division prepares
body for action; parasympathetic division prepares body for rest.
Cranial nerves - 🧠 ANSWER ✔✔12 nerves from brain stem, mostly
innervate the head, some from CNS and PNS
3 meninges (from dorsal to ventral) that surround the brain - 🧠 ANSWER
✔✔Dura mater (hard), Arachnoid membrane, pia mater (soft)
ventricles of the brain - 🧠 ANSWER ✔✔canals and caverns in the brain that
contain cerebrospinal fluid (CSF)
Choroid plexus - 🧠 ANSWER ✔✔specialized tissue in ventricles that
secretes CSF
2
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Where is CSF reabsorbed? - 🧠 ANSWER ✔✔Subarachnoid space or
lymphatic system
CLARITY Visualization Technique - 🧠 ANSWER ✔✔replace lipids in brain
with transparent liquid, allows view of non-lipid structures
CT (computed tomography) - 🧠 ANSWER ✔✔scan a series of X-ray
photographs taken from different angles and combined by computer into a
composite representation of a slice of the brain's structure. Quick, cheap,
easy. Does not provide detail
MRI (magnetic resonance imaging) - 🧠 ANSWER ✔✔Measures how
hydrogen atoms respond to perturbations of strong magnetic field. Signals
are mapped by computer to create imagery. More detailed than CT, no X-
irradiation, image from any angle. Time consuming and noisy.
DTI (diffusion tensor imaging) - 🧠 ANSWER ✔✔Detects movement of water
molecules in white matter pathways. Measures connectivity of different
parts of the brain, shows where communication is lacking.
PET (positron emission tomography) - 🧠 ANSWER ✔✔Radioactivity creates
dynamic image, but very expensive and resolution is not great
3
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Correct Answers | New
Update
Anterior (rostral) - 🧠 ANSWER ✔✔front of brain
Posterior (caudal) - 🧠 ANSWER ✔✔toward the tail
Dorsal - 🧠 ANSWER ✔✔Top/up/back
Ventral - 🧠 ANSWER ✔✔Bottom/down/belly side
Lateral - 🧠 ANSWER ✔✔away from the midline
Medial - 🧠 ANSWER ✔✔toward the midline
4 elements of the CNS - 🧠 ANSWER ✔✔Cerebrum, cerebellum, brain stem,
spinal cord
Dorsal root spinal nerve - 🧠 ANSWER ✔✔Carries afferent (sensory) info
into the spinal cord
Ventral root spinal nerve - 🧠 ANSWER ✔✔Carries efferent (motor)
information from the spinal cord
1
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,Dorsal root ganglia - 🧠 ANSWER ✔✔clusters of sensory neuron cell bodies
outside the spinal cord
Are the dorsal root ganglia in the somatic or visceral peripheral nervous
system? - 🧠 ANSWER ✔✔Somatic
Somatic PNS - 🧠 ANSWER ✔✔The part of the peripheral nervous system
that innervates the skin, joints, and skeletal muscles.
Visceral (autonomic) PNS - 🧠 ANSWER ✔✔Neurons which innervate the
internal organs, blood vessels, and glands; sympathetic division prepares
body for action; parasympathetic division prepares body for rest.
Cranial nerves - 🧠 ANSWER ✔✔12 nerves from brain stem, mostly
innervate the head, some from CNS and PNS
3 meninges (from dorsal to ventral) that surround the brain - 🧠 ANSWER
✔✔Dura mater (hard), Arachnoid membrane, pia mater (soft)
ventricles of the brain - 🧠 ANSWER ✔✔canals and caverns in the brain that
contain cerebrospinal fluid (CSF)
Choroid plexus - 🧠 ANSWER ✔✔specialized tissue in ventricles that
secretes CSF
2
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Where is CSF reabsorbed? - 🧠 ANSWER ✔✔Subarachnoid space or
lymphatic system
CLARITY Visualization Technique - 🧠 ANSWER ✔✔replace lipids in brain
with transparent liquid, allows view of non-lipid structures
CT (computed tomography) - 🧠 ANSWER ✔✔scan a series of X-ray
photographs taken from different angles and combined by computer into a
composite representation of a slice of the brain's structure. Quick, cheap,
easy. Does not provide detail
MRI (magnetic resonance imaging) - 🧠 ANSWER ✔✔Measures how
hydrogen atoms respond to perturbations of strong magnetic field. Signals
are mapped by computer to create imagery. More detailed than CT, no X-
irradiation, image from any angle. Time consuming and noisy.
DTI (diffusion tensor imaging) - 🧠 ANSWER ✔✔Detects movement of water
molecules in white matter pathways. Measures connectivity of different
parts of the brain, shows where communication is lacking.
PET (positron emission tomography) - 🧠 ANSWER ✔✔Radioactivity creates
dynamic image, but very expensive and resolution is not great
3
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
